Hunston Electronics Company

Manufacturing a full range of acoustic components

Custom services | Developing miniature SMD buzzers and speakers | Established in 2011

 1st year  Verified
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MR Chu, Kenny

Sales Manager

MR Chan

Assistant Sales Manager

Response Rate: High Avg Response Time: More than 72h

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Piezo Buzzer

Hunston Electronics Company - Piezo Buzzer Construction and Theory Piezo Buzzer Construction and Theory

Hunston Electronics Company - External Drive/Self Drive Piezo Buzzer External Drive/Self Drive Piezo Buzzer

Hunston Electronics Company - 2 Support Methods for Piezoelectric Ceramic Buzzers 2 Support Methods for Piezoelectric Ceramic Buzzers

Piezo buzzer structure and theory introduction

Piezo buzzer element have a simple structure in which piezoceramic element is glued to vibration plate. When alternating voltage is applied to piezoceramic element, the element expands or shrinks diametrically. This characteristic is utilized to make vibration plated bend to generate sounds.

Piezo description type:

The acoustic generating method can be roughly divided into self-drive oscillation method and external-drive oscillation method. The former shows the lowest impedance on the acoustic generator, and produces the sound by the positive feedback oscillation circuit to make resonance. Thereby, big sound pressure can be obtained by a simple circuit. While the latter selects an optional frequency and makes sound by the non-stable multivibrator, and it is used for the case having the oscillation circuit.

There are 2 support methods for piezoelectric ceramic buzzers products:

a. Circumference Fixing Method-This method is to fix the outside circumference of the buzzer element to the supporting ring of the plate. Considerable sound pressure can be obtained covering a wide frequency range around the resonant frequency.

b. Nodal Mounting Method-This Method is to fix the nodal diameter of the buzzer element to the supporting ring of the plate. Loud sound pressure can be obtained. Flexible adhesives, such as silicon rubber, should be used between the buzzer element and the support ring.

Contact Details

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Hunston Electronics Company

Address: Unit 1510,15/F, Metro Ctr, Phase I, No.32 Lam Hing St., Kowloon Bay, Kowloon, Hong Kong SAR

Tel:  (852) 35911490

Fax:  (852) 35911491

Homepage Address: http://www.globalsources.com/hunston.co

Other Homepage Address: http://www.hs-buzzer.com

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Supplier and product information updated August 15, 2017.

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MR Chu, Kenny

Sales Manager

MR Chan

Assistant Sales Manager

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